Feature:1. Mobile operation is more relaxed than ordinary mice. Small compact design, the size of the pen, the function of all mouse2. Human engineering design is more suitable for hand. Small size, portable. Can be loaded into the bag3. The best promotional gifts, students' favorite. Plug and play, no need to drive4. Accurate sensing components, sensitive to 3 DPIs, use more heart‑should.Easy to use5. Exquisite and small, notebook users preferred, the new generation of products have adapted for left‑handed users, so that the left hand users are also usedSpecification:Item Type: Mouse PenMaterial: ABSKey Number: 4 Keys3 DPI: 800/1200/1600DPIButton: 5,000,000 TimesCurrent: 15mAR F Frequency: 2402MHZ-2480MHZApplication: PC, Smart Television, Set-Top BoxSupport: For Windows 7 / Vista / Xp / 2000/ Andorid/Linux/ Os XBattery Specifications: 1 AAA Battery (Excluding).Package List:1 x Mouse1 x User Manual 1 x USB Receiver1 x TYPE-C Adapter 1 x Micro B Adapter1 x Mouse BaseNote:Without battery delivery